Table of Contents

1 Scope

2 General

2.1 Earthquake Loadings

2.2 Drawings And Particulars Of The Lift Installation

2.3 Lift Security System

2.4 Building Security System

2.5 Maintenance And Inspection

3 Definitions

4 Materials And Methods Of Construction

4.1 Materials

4.2 Steel (Other Than Castings)

4.3 Castings

4.4 Timber

4.5 Concrete

4.6 Welding

4.7 Glass

5 General

5.1 Scope

5.2 Electric Lift Particulars To Be Documented

6 Machinery And Sheave Beams, Supports And Foundations

6.1 Floors, Beams And Supports Required

6.2 Loads On Machinery And Sheave Beams, Floors Or Foundations And Their Supports

6.3 Securing Of Equipment To The Supporting Structures

6.4 Bolts, Studs And Washers For Supporting And Overhead Structures, Car Frames, Counterweights And Guide Rail Supports

6.5 Calculated Deflections Of Machinery, Sheave And Hitch Beams And Their Supports

6.6 Strength Of Building Construction

7 Machine Rooms

7.1 Construction

7.2 Equipment In Machine Room

7.3 Limitations To The Use Of The Machine Room

7.4 Machine Room Entrances

7.5 Means Of Access To Machine Rooms

7.6 Headroom In Machine Room

7.7 Machine Room Equipment – Accessibility And Clearance

7.8 Loading On Machine Room Floors (Including Platform And Secondary Floors)

7.9 Hatches In Machine Rooms

7.10 Protection Of Floor Openings

7.11 Difference In Floor Levels In Machine Rooms

7.12 Machine Room Stop Switch

7.13 Platforms (Other Than Machine Room Floors) Affording Access To Overhead Sheaves And Other Equipment

7.14 Lighting Of Machine Rooms (Including Platforms And Secondary Floors)

7.15 Protection Of Machine Rooms Against Weather

7.16 General Purpose Power Point In The Machine Room

7.17 Ventilation Of Machine Rooms

7.18 Machine Room Lifting Beams

8 Machines

8.1 General

8.2 Types Of Driving Machines

8.3 Assumed Loadings

8.4 Factors Of Safety

8.5 Traction Sheaves And Drums

8.6 Bolts Transmitting Torque

8.7 Threads For Studs Or Screws In Tension

8.8 Shafts

8.9 Gears

8.10 Bearings

8.11 Brakes

8.12 Flat Belt And Chain Drives

8.13 V-Belt Driven Machines

8.14 Maximum Speed

8.15 Rope Traction

8.16 Emergency Hand Winding

9 Top And Bottom Clearances For Cars And Counterweights

9.1 Clearance At Bottom Of Car

9.2 Car Buffer Clearance

9.3 Clearance Of Car At Top Landing

9.4 Counterweight Buffer Clearance

9.5 Clearance At Top Of Counterweight

9.6 Clearance At Bottom Of Counterweight

10 Buffers And Stops

10.1 Provision Of Buffers

10.2 Location Of Buffers

10.3 Construction And Requirements For Solid Buffers

10.4 Construction And Requirements For Spring Buffers

10.5 Construction And Requirements For Oil Buffers

10.6 Buffer Oil Requirements

10.7 Permanent Stops For Drum Drive Lifts

11 Pits

11.1 Provision Of Pits

11.2 Pit Floors

11.3 Pit Maintenance

11.4 Guards Between Adjacent Pits

11.5 Access To Pits

11.6 Lighting Of Pits

11.7 Pit Stop Switch

11.8 Minimum Depth Of Pits

11.9 Dryness Of Pits

11.10 Power Point In Pit

11.11 Pits Not Extending To The Lowest Floor Of The Building

11.12 Safe Access To Elevated Equipment In The Lift Pit And On The Underside Of The Car

12 Liftwell Enclosures

12.1 Construction

12.2 Strength

12.3 Flushness Of Liftwell

12.4 Piping Etc.

12.5 Observation Lifts

13 Car And Landing Doors

13.1 Doors Required

13.2 Types Of Doors Allowed

13.3 Construction Of Doors

13.4 Manually Operated Doors

13.5 Power Operation Required

13.6 Requirements For Vision Panels

13.7 Vertically Sliding Doors

13.8 Horizontally Sliding Doors

14 Locking Devices And Switches For Car And Landing Doors

14.1 Car Doors

14.2 Maximum Landing Zones

14.3 Landing Doors

14.4 Requirements For Door Locks

14.5 Emergency Opening Arrangements For Landing Doors

15 Clearance In Liftwells And Enclosures

15.1 Clearances At Car Openings

15.2 Clearance Between Cars, Counterweights And Liftwell Enclosures

16 Hoisting Ropes

16.1 Materials

16.2 Method Of Measuring Ropes

16.3 Size Of Ropes

16.4 Minimum Number Of Ropes

16.5 Minimum Rope Factor Of Safety

16.6 Wire Rope Data Plate

16.7 Lengthening Or Repairing Of Wire Ropes

16.8 Replacement Of Hoist Ropes

17 Rope Attachments And Fittings

17.1 Securing Of Wire Hoist Ropes To Winding Drums

17.2 Attachment Of Ropes To Cars, Counterweights And The Overhead Structure

17.3 Eyebolts

17.4 Methods Of Splicing Eyes In Ropes

17.5 Sockets

17.6 Equalizers

18 Sheaves And Drums

18.1 Grooving Of Sheaves And Drums

18.2 Rope Retainer Guards

18.3 Ratio Of Rope Diameter To Sheave Diameter

18.4 Mechanical Design

18.5 Sheave Guards – Multiple Roping

18.6 Guarding Of Nip-Points

19 Counterweights

19.1 Counterweight Construction

19.2 Factor Of Safety

19.3 Guarding Of Counterweights

19.4 Counterweight Guide Shoes

19.5 Lift Car As Counterweight

20 Guides For Lift Cars And Counterweights

20.1 Guide Rails Required

20.2 Guide Rail Material

20.3 Requirements For Steel

20.4 Requirements For Materials Other Than Steel

20.5 Guide Rail Section

20.6 Stresses And Deflections In Steel Guide Rails

20.7 Stresses And Deflections In Counterweight Guide Rails

20.8 Intermediate Tie Brackets For Counterweight Guide Rails

20.9 Guide Rail Guiding Surfaces

20.10 Guide Rail Joints And Fish Plates

20.11 Overall Length Of Guide Rails

20.12 Guide Rail Brackets And Building Supports

20.13 Fastenings Of Guide Rails To Rail Brackets

20.14 Guide Rail Gauge Tolerance

20.15 Guide Shoes

20.16 Roller Guide Shoes

21 Rated Car Capacity And Classes Of Loading

21.1 Rated Loading Capacity For Lift Cars

21.2 Cars Fitted With False Walls Or Partitions

21.3 Notices In Lift Cars

22 Car Construction

22.1 Car Frames Required

22.2 Guiding Members

22.3 Design Of Car Frames And Guiding Members

22.4 Underslung Car Frames

22.5 Car Platforms

22.6 Materials For Car Frames And Platform Frames

22.7 Requirements For Steel

22.8 Requirements For Metals Other Than Steel

22.9 Car Frame And Platform Connections

22.10 Strength Of Car Frames And Conditions Of Loading

22.11 Hoist Rope Hitch Plates

22.12 Car Frame With Crosshead Sheaves

22.13 Attachments To Car Frame

22.14 Lift Car Roof

22.15 Car Roof Trapdoor

22.16 Extent Of Car Enclosures

22.17 Securing Of Car Walls

22.18 Observation Lift Cars

22.19 Headroom For Cars And Entrances

22.20 Lighting Of Lift Cars

22.21 Protection Of Emergency Lighting Source

22.22 Deflection Of Car Walls

22.23 Car Aprons

22.24 Materials For Car Enclosures

22.25 Ventilation Of Lift Cars

22.26 Use Of Annealed Glass In Lift Cars

22.27 Lining Of Lift Cars

23 Power Operation Of Car And Landing Doors

23.1 Type Of Doors Permitted

23.2 Manual Opening Of Power Doors

23.3 Power Opening Of Doors

23.4 Power Closing Of Doors

23.5 Kinetic Energy And Force Limitations For Power Door Operations (Horizontal)

23.6 Passenger Protective Device – Horizontal Doors

23.7 Vertically Sliding Doors – Maximum Closing Speeds

24 Electrical Installation (General, Earthing And Wiring)

24.1 Stop Switch On Top Of Car

24.2 General Purpose Power Point On Top Of Car

24.3 Clearances Around Controllers

24.4 Electrical Supply

24.5 Emergency Electrical Supply

24.6 Identification Of Switchgear

24.7 Position Of Circuit-Breakers

24.8 Wiring

24.9 Travelling Cables To Cars

24.10 Lift Circuit Diagram In Machine Room

25 Operating Devices And Control Equipment

25.1 Types Of Operating Devices

25.2 Operation By Car Switch

25.3 Operating Devices On Roof Of Car For Inspection Service

25.4 Operation In Levelling Or Manual Inching Zone

25.5 Car Control Buttons

25.6 Operation Of Lifts Under Fire Or Other Emergency Conditions (Excluding Earthquakes)

25.7 Detection Of Fire In Machine Rooms (Including Sheave Rooms And Governor Rooms Containing Electronic Equipment) And Liftwells

25.8 Operation Of Lifts Under Earthquake Conditions

26 Electrical Protective Devices

26.1 Protective Devices – General

26.2 Phase-Reversal And Failure Protection

26.3 Release And Application Of Driving-Machine Brakes

26.4 Control And Operating Circuit Requirements

26.5 Use Of Rectifying Units To Supply Power To Direct Current Lift Motors

26.6 Overload Weighing Devices

26.7 Stop Switches – General Requirements

27 Terminal Stopping Devices

27.1 General Requirements

27.2 Normal Limit Switches (Slow Down And Stopping)

27.3 Overtravel Limit Switches

27.4 Emergency Terminal Speed Limiting Devices

28 Indicators, Annunciators, Alarms, Telephones, Etc.

28.1 Position Indicator In Car

28.2 Emergency Communication And Alarm

28.3 Numbering Of Lifts

29 Safety Gear – Car And Counterweight

29.1 Where Required And Location

29.2 Safety Gear – Identification And Classification Of Types

29.3 Multiple Safety Gear

29.4 Function And Stopping Distance Of Safety Gear

29.5 Counterweight Safety Gear

29.6 Safety Gear Not To Stop Ascending Car Or Counterweight

29.7 Safety Gear Switch

29.8 Limits Of Use Of Safety Gear

29.9 Application And Release Of Safety Gear

29.10 Minimum Permissible Clearance Between Rail Gripping Faces Of Safety Gear Parts

29.11 Type C Safety Gear – Rope Pull-Out

29.12 Minimum Factors Of Safety And Stresses Of Safety Gear Parts And Rope Connections

29.13 Corrosion-Resistant Bearings In Safety Gear And Safety Operating Mechanisms

29.14 Governor Rope Tension

29.15 Rail Lubricants

29.16 Compensation Sheave Lock-Down

30 Speed Governors

30.1 Location And Requirements Of Governors

30.2 Mechanical Tripping Speeds For Governors

30.3 Governor Switches

30.4 Sealing And Painting Of Speed Governors

30.5 Governor Ropes

30.6 Rope Grip Jaws Of Speed Governors (Where Fitted)

30.7 Design Of Speed Governor Sheaves And Traction Between Rope And Sheave

30.8 Speed Governor Marking Plate

30.9 Guarding Of Nip-Points

31 General

31.1 Scope

31.2 Drawings And Particulars

31.3 Maximum Permissible Speed

31.4 Cylinder Supports And Foundations

31.5 Pressure Test After Erection

31.6 Devices To Hold Car Above Lowest Floor

31.7 Materials, Components And Equipment Complying With Approved Standards

32 Machine Rooms And Machinery Spaces

32.1 Machine Rooms

33 Access To Overhead Sheaves

34 Hydraulic Driving Machines

34.1 Type

34.2 Rams

34.3 Cylinders

35 Hydraulic Lines

35.1 General

35.2 Rigid Lines

35.3 Hoses

36 Valves

36.1 Working Pressures

36.2 Pump Relief Valve

36.3 Check Valve

36.4 Door Lock Valve

36.5 Flow Restriction Valve

36.6 Manual Lowering

37 Tanks

37.1 Material

37.2 Capacity

37.3 Means For Checking Liquid Level

37.4 Covers And Venting

37.5 Factor Of Safety

37.6 Fittings And Protection

38 Direct-Acting Electrohydraulic Lifts – Clearances For Cars And Counterweights

38.1 Clearance At Bottom Of Car

38.2 Car Buffer Clearance

38.3 Top Overtravel

38.4 Clearances Above Car (With Ram Fully Extended Against Its Stop

38.5 Clearance At Top Of Flying Counterweight

38.6 Clearance At Bottom Of Flying Counterweight

39 Suspended Electrohydraulic Lifts – Clearances For Cars And Counterweights

39.1 Clearance At Bottom Of Car

39.2 Car Buffer Clearance

39.3 Compressed Ram Clearance

39.4 Clearance Of Car At Top Landing

39.5 Top Overtravel

39.6 Clearance At Top Of Flying Counterweight

39.7 Clearance At Bottom Of Flying Counterweight

40 Car And Counterweight Buffers

40.1 Car Buffers

40.2 Counterweight Buffers

40.3 Flying Counterweight Buffers

41 Pits

41.1 General Requirements

41.2 Pits Not Extending To Lowest Floor Of Building

42 Liftwell Enclosures

43 Landing Doors

44 Locking Of Landing Doors

44.1 General Requirements

44.2 Door Locks

45 Clearances In Liftwells And Enclosures

46 Piping Etc. In Machine Rooms Or Liftwells

47 Suspension Ropes

48 Rope Attachments And Fittings

49 Sheaves And Pulleys

50 Counterweights And Flying Counterweights

50.1 General Requirements

50.2 Mass Of Flying Counterweight

51 Guides For Lift Cars And Counterweights

52 Rated Car Capacity

53 Car Construction

54 Car Doors

55 Power Operation Of Car And Landing Doors

56 Electrical Installation

57 Precautions In Wiring

58 Operating Devices And Control Equipment

59 Electrical Protective Devices

59.1 General Requirements

59.2 Top Overtravel Limit Switch

59.3 Anti-Creep Levelling Device

59.4 Normal Limit Switches

59.5 Door Lock Valve

59.6 Flying Counterweight Overtravel Limit Switch

60 Terminal Stopping Devices

60.1 General Requirements

60.2 Normal Limit Switches (Slowing Down And Stopping)

60.3 Top Overtravel Limit Switches

60.4 Anti-Creep Levelling Device

60.5 Flying Counterweight Bottom Overtravel Limit Switch

61 Indicators, Annunciators, Alarms, Telephones, Etc

62 Car And Counterweight Safety Gear

63 Speed Governors

64 Car Frame And Platform Stresses And Deflections For Direct-Acting Electrohydraulic Lifts

64.1 General

64.2 Bow Members

64.3 Buffer Members

64.4 Platform Members

64.5 Sling Members

65 Scope

66 First Inspection Testing Of Safety Gear

66.1 Application

66.2 General Test Conditions

66.3 Speed Test At Normal Speed

66.4 Speed Tests At Governor Tripping Speed

66.5 Speed Test Requirements

66.6 Inertia Application Test For Type A Safety Gear

66.7 Broken Suspension Rope Test For Type A Safety Gear

67 First Inspection Testing Of Oil Buffers

67.1 Application

67.2 Oil Level Test

67.3 Plunger Return Tests

67.4 Load And Speed Tests

68 First Inspection Testing Of Electrohydraulic Equipment

69 Routine Inspection, Adjustment And Testing Of Safety Gear

69.1 Periodic Inspection And Tests

69.2 Tests Following Any Alteration Affecting Safety Gear

70 Requirements For Lifts On Access Routes For People With Disabilities

70.1 Levelling

70.2 Lift Car Size

70.3 Car And Landing Doors

70.4 Lift Controls

70.5 Lift Indicators

70.6 Support Rails

Appendix

A Medium Density Polyethylene (Mdpe)

B Seismic Zones

C New Zealand Building Code (Nzbc) Requirements For Associated Building Work

D Quality Of Drawings And Particulars

Table

2.1 – Risk Factors

10.1 – Types Of Stops And Buffers

10.4 – Minimum Stroke Of Spring Buffers

10.5 – Minimum Stroke Of Oil Buffers

16.5 – Minimum Factors Of Safety For Hoisting Wire Ropes

18.1 – Groove Seats Of Sheaves And Drums

20.5 – Guide Rails – Nominal Masses And Dimensions

20.10 – Minimum Thickness Of Fish Plates And Minimum Diameter Of Fastening Bolts

20.13 – Minimum Size Of Rail-Fastening Bolts

21.1 – Inside Net Platform Areas For Typical Minimum Rated Loads

28.4 – Numbering Of Lifts

29.4 – Type B Safety Gear Stopping Distances

30.2 – Maximum Speeds At Which Car Speed Governor Trips And Governor Over-Speed Switch Operates

30.7 – Minimum Ratio Of Governor Sheave To Rope Diameter

31.3 – Maximum Speed In Down Direction

35.3.5 – Minimum Inside Radius Of Bends

38.3 – Minimum Top Overtravel

40.1(A) – Types Of Stops And Buffers For Cars

40.1(B) – Minimum Stroke Of Spring Buffers For Cars

40.1(C) – Minimum Stroke Of Oil Buffers For Cars

Figure

9.1.1 – Bottom Car Clearances – Types A, B And C Safety Gear

9.1.2 – Clearances Below The Car – Type D Safety Gear

9.3.1 – Clearances Above The Car For Rope Suspended Lifts And Below The Counterweight

9.3.2 – Clearance Above The Car Where Overhead Beam Protrudes Below Liftwell Ceiling

9.3.3 – Clearances Above The Car Where Overload Diverter Sheave Protrudes Below Liftwell Ceiling

9.5 – Clearances Above The Counterweight

20.5 – T-Section Rail Guide

20.8 – Intermediate Tie Bracket For Counterweight Guide Rails

20.16 – Lift Counterweight And Car Frame Anchorage – Typical Arrangement

21.1 – Inside Net Platform Areas For Passenger Lifts

25.1 – Major Component Displacement Detector

29.4.1 – Drive-In Acceptance Tests – Permitted Stopping Distances For Type B Safety Gear

29.4.2 – Runaway Acceptance Tests – Permitted Stopping Distances For Type B Safety Gear

29.4.3 – Minimum And Maximum Permitted Stopping Distances Of Car And Counterweight With Wedge Clamp Type C Safety Gear

30.2 – Maximum Governor Tripping Speeds

34.2.3.2(A) – Single Stage Ram And Cylinder

34.2.3.2(B) – Telescopic Ram And Cylinder Without External Head Guidance

34.2.3.2(C) – Telescopic Ram And Cylinder

34.3.2 – Cylinder Wall Thickness

34.3.4.2 – Cylinder Ends

35.3.5 (A) – Recommended Practices For Positioning Hydraulic Hoses

35.3.5 (B) – Prohibited Practices For Positioning Hydraulic Hoses

70.4.1 – Control Panel For Passenger Carrying Lifts

B1 – Seismic Zones

C1 – Sign Identifying Potential Hazard